baber/WOPTO huggingface dataset:
Patent GB-1111355-A (GB)
Title: Stabilised variable oscillator
IPC: H03L7/22
Filed: 1966-06-24
Abstract: 1,111,355. Automatic frequency control systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 24 June, 1966 [30 June, 1965], No. 28287/66. Heading H3A. A variable frequency oscillator 4 is synchronized by a reference oscillator 16 with the aid of fixed and variable cyclic pulse counters 14 and 7 which produce equal output frequencies for comparison. Initially, the frequency of oscillator 16 is always too high and the counter 7 produces an output pulse 1C<SP>1</SP> before the counter 14 completes its cycle This pulse 1C<SP>1</SP> re-sets counter 14 and advances counter 13; an analogue to digital converter 21 reads the count of counter 13 and converts this to an analogue signal which reduces the frequency of oscillator 4 by one increment. When the frequency has been reduced sufficiently, counter 14 will produce an output pulse IC before the counter 7 completes its cycle, and this pulse operates a flip-flop (not shown) which inhibits gate 12 to prevent the pulses IC<SP>1</SP> from reaching either of counters 13 or 14. A phase comparator 11 then compares the phases of pulses IC and IC<SP>1</SP> to control the oscillator 4. A frequency setting device 8 alters the division ratio of counter 7, and when adjusted re-sets counters 13 and 14 to zero.
Patent GB-1466140-A (GB)
Title: Antistatic polyester filaments
IPC: D01D1/06
Filed: 1974-06-26
Abstract: 1466140 Antistatic composite filaments TORAY INDUSTRIES Inc 26 June 1974 [26 June 1973 6 Feb 1974 (2)] 28295/74 Heading B5B [Also in Division D1] A filament of specific resistance of less than 11# comprises a polyester in which is dispersed a polyether-polyester block copolymer in the form of at least one fine, continuous stria extending lengthwise through the filament. The stria have a maximum diameter of 0À01-5 microns, the copolymer is obtained by copolymerizing 10- 97À5% polyalkylene glycol (average degree of polymerization 10-1000) with a polyester and the filament contains 0À01-5À0% of polyalkylene glycol. Filaments may be in the form of composite filaments having a core of the polyester containing stria surrounded by a sheath of polyester material only. Further the filaments may be of non-circular cross-section. The filaments may be formed using a mix spinning apparatus as in Fig. 1 wherein block polymer A is passed down 25 and 27, having filtered through 26 and mixed in 28 with polyester B which is passed through 17, 18, 21 and 22 having filtered through 12, then passed through the static mixer 23 to the spinneret 1. Using an apparatus as in Fig. 3, composite filaments are spun, the polymer B entering at 17 and a polymer B<SP>1</SP> at 17<SP>1</SP>. Polymer A is filtered outside the apparatus. Fig. 4 shows an alternative apparatus for composite filament spinning, A and B being mixed at 16a and further amounts of B flowing down 7a and 9a to the orifices 10a and 13a to form the sheath Fig. 5 shows an arrangement for spinning mixed yarns (see also Division D1).
Patent GB-883411-A (GB)
Title: Tamperproof parking meter housing structure
IPC: G07F17/24
Filed: 1960-08-16
Abstract: 883,411. Hinges and pivots. ROCKWELL MANUFACTURING CO. Aug. 16, 1960 [Aug. 21, 1959], No. 28335/60. Class 65(2). [Also in Group XVIII] The upper and lower doors 32, 34 of a parking meter are hinged on a single pin 30 and, to prevent the pin from being driven out from the exterior of the meter, the hardened end of a screw 42 projects into a groove in the pin, the head of the pin being accessible only when the door 32 is open.
Patent GB-1076737-A (GB)
Title: Process and product
Inventor: AU TIN YAM
IPC: D06C5/00
Filed: 1965-07-05
Abstract: A stocking knitted from a two-component crimpable filament each component being of fibre forming molecular weight and having dissimilar shrinkage values, exhibits a stress retention in the knee and ankle region of about 60%.  The filament may be formed on one side of a polyhexamethylene adipamide and on the other side of a polyhexamethylene adipamide/polyhexamethylene sebacamide such that when the greige stockings are relaxed steamed at approximately 215 DEG F at atmospheric pressure a crimp develops in the filament. Subsequently the stocking is dyed and postboarded and is found to have a stress retention of the desired order.
Patent GB-216445-A (GB)
Title: Improvements in surgical trusses
IPC: A61F5/26
Filed: 1923-11-12
Abstract: 216,445. Schutze, F. Nov. 12, 1923. Trusses. - A surgical truss comprises a non- elastic back portion which is connected to the carrier for the pad at one or both sidles by means of a coiled tension spring or springs which work within a tubular sheath forming an extension of the back portion of the belt. In the form shown in Fig. 1, the main belt 1 has a stiffened padded back-portion 2 and is connected to the pad 3 at one side by a stud or button 4. The connection at the opposite side comprises, as shown in Fig. 3, a fastener 14 connected by means of a strap 10 to a coiled tension spring 12 attached to the main portion of the belt adjacent its junction with the back portion. The spring 12 works in a tubular sheath made up of the belt 1, an inner piece of soft-fabric 6, and an intermediate strip of leather 7. These parts are stitched together to form an open-ended sheath, and the parts 1, 6 are continued beyond the part 7 to form flaps 8 connected by tapes 9. The number of springs may be varied, and both sides of the belt may be joined to the pad by a connection of the kind described. The under-strap 15 comprises, as shown in Fig. 6, a soft leather sheath or casing enclosing a loop 16 connected to the pad 3 and coupled by a coiled tension spring 17 to a loop 18 attached to the strap 19 which engages a loop 20 on the belt 1.
Patent GB-988514-A (GB)
Title: Improvements in or relating to vacuum meters
IPC: G01L21/00
Filed: 1961-08-04
Abstract: 988,514. Determining pressure. W.C. HERAEUS G.m.b.H. Aug. 4, 1961 [Aug. 6, 1960], No. 28434/61. Drawings to Specification. Heading G1N. A vacuum gauge which may use an ionisation measuring head is arranged to indicate on a linear scale, a log arithmic scale, or both, by providing amplifier means which may be switched to give either a linear or logarithmic output. The amplifier means may comprise a pair of separate amplifiers,the inputs or outputs of which may be selectively coupled to the gauge or the indicator respectively. A permanent connection between either amplifier and one indicator may be provided together with a switch operable to connect the same amplifier or the other amplifier to a second indicator simultaneously. Pen recorders may be provided. The Specification refers to the vacuum degasification of steel,and to the vapour deposition of coatings and there is a reference to process regulation and control.
Patent GB-1141210-A (GB)
Title: Improvements in or relating to synthetic resin compositions
Inventor: KROMOLICKI ZYGMUNT
IPC: C08L51/04
Filed: 1966-06-24
Abstract: 1,141,210. Graft polymer blends. STERLING MOULDING MATERIALS Ltd. 23 June, 1967 [24 June, 1966], No. 28552/66. Heading C3G. A composition comprises a homogeneous mixture of a first graft polymer of a linear polybutadiene having a minimum cis isomer content of 30% with a vinyl (including vinylidene) aromatic compound, a polymer or copolymer of a vinyl aromatic compound and a second graft polymer of a non-linear rubbery polymer of a diene hydrocarbon having a high trans isomer content with a vinyl aromatic compound. The first graft polymer is preferably produced from polybutadiene and styrene by the method of Specification 1,030,497, the resulting product consisting of graft polymer particles of size 0.5  to 30 microns dispersed in a polystyrene matrix. The second graft polymer, having a particle size of 0À1 to 0.3 micron, and the vinyl aromatic polymer or copolymer are produced in emulsion, the emulsions being coagulated prior to being blended with the first graft polymer. In the examples, the first polybutadiene-styrene graft polymer is blended with a second polybutadienestyrene graft polymer and either polystyrene or a styrene/alpha-methyl styrene copolymer.
Patent GB-1007854-A (GB)
Title: Improvements in preparation of low viscosity epoxide resins
IPC: C07D303/24
Filed: 1962-07-25
Abstract: Monomeric glycidyl ethers of bisphenol A having viscosities of less than 10,000 centipoises at 25 DEG  C. are prepared by reaction of an epihalohydrin and bisphenol A, using the epihalohydrin in excess of bisphenol A in an epihalohydrin-bisphenol mol. ratio of at least 10 to 1, with 2 mols. of sodium or potassium hydroxide per mol. of bisphenol and with at least 1% by weight of water calculated on the epihalohydrin, maintaining the temperature in the range 62 DEG  to 85 DEG  C. for two to five hours, introducing a portion of the sodium or potassium hydroxide uniformly during at least each of the first two hours of reaction at a rate of 1.5 to 16% of the total per hour, removing water from the product and dehydrohalogenating said reaction product in the presence of at least 3 mols. of epihalohydrin per initial hydroxyl group and adding the remaining portion of the total sodium or potassium hydroxide in the dehydrohalogenating stage. Glycerol dihalohydrin is formed as a by-product in above reaction by reaction of the intermediate halohydrin ether with excess epihalohydrin.
Patent GB-843425-A (GB)
Title: Radio-active gauging temperature compensator system
IPC: G01G9/00
Filed: 1958-09-05
Abstract: 843,425. Radio-active gauging. FOXBORO CO. Sept. 5, 1958 [Sept. 13, 1957], No. 28653/58. Class 40(3). [Also in Group XXXVIII] In radiation gauging apparatus of the type having two sources and two ionization chambers, one for measurement and one for reference, errors due to the reference unit being slow to respond to temperature changes are avoided by providing additional compensating means responding to departures from a preselected temperature relation between the two units. Radiation from the source 12 is measured in the ionization chamber 16 to detect variations in the density of a paper web 15. Slow changes in ambient temperature and pressure are compensated by the series-connected reference chamber 26 and source 25, the difference between the outputs of the two chambers being amplified at 21 and displayed at 22. Interposed between the amplifier and indicator is a bridge circuit 33 which is balanced when the temperatures of the two units are equal as sensed by the resistors 34, 35. A predetermined inequality of temperature can be allowed for if necessary by adjusting the resistor 38. Any further temperature change affecting the units unequally causes the bridge to give an output which corrects the indication at 22 by the appropriate amount. The radiation sources are preferably beta emitters such as Sr 90, Tl 204 or Kr 85.
Patent GB-796305-A (GB)
Title: Derivatives of oxopiperazinoalkylhalophenothiazines
IPC: C07D417/06
Filed: 1956-09-19
Abstract: The invention comprises phenthiazine derivatives of the general formula <FORM:0796305/IV (b)/1> and non-toxic acid addition and quaternary salts thereof, wherein n is 0, 1 or 2, X is fluorine or chlorine and is preferably a chlorine substituent in the 2-position of the phenthiazine ring, Alk is an alkylene radical separating the two nitrogen atoms by at least two carbon atoms and R is hydrogen or an alkyl, aralkyl, acyl, hydroxyalkyl, alkoxyalkyl, alkenyloxyalkyl or acyloxyalkyl radical.  The compounds are prepared by condensing a fluorine or chlorine substituted phenthiazyl-alkyl halide with the corresponding keto-piperazine or by treating a fluoro- or chloro-phenthiazine with a piperazinoalkyl halide.  Derivatives containing a substituent in the 4-position of the piperazine ring may also be prepared by alkylation or acylation of the corresponding unsubstituted compounds.  The products which are useful therapeutically as anti-emetic and ataractic agents may be converted into their acid addition salts with acids such as sulphuric, phosphoric, hydrochloric, hydrobromic, sulphamic, citric or ascorbic or into their quaternary salts with organic esters such as halides, sulphates and aromatic sulphonates. Examples describe the preparation of 10-(ketopiperazinyl) alkylhalophenthiazines of the general formula I in which the halo-substituent is a 2- or 3-chloro or a 2-fluoro substituent, the radical "Alk" is an ethyl, propyl or butyl residue and R is chosen from hydrogen or methyl, ethyl, benzyl, phenethyl, m-tolylmethyl, acetyl, propionyl, b  - hydroxyethyl, b  - acetoxyethyl, b  - acrylyloxyethyl, b  - ethoxyethyl, allyloxyethyl or propoxypropyl groups.  Acid addition and quaternary salts and compounds containing methyl substituents on the piperazine ring are also described.  Starting materials.  2-Fluoro-10-(d -chlorobutyl)-phenthiazine is made by heating N-phenyl - 4 - fluoroanthranilic acid to give m - fluoro - diphenylamine, heating this with sulphur in the presence of iodine to form 2-fluorophenthiazine and treating this with butyl lithium, followed by d -chlorobutyl p-toluene-sulphonate.  1 - Methyl - 3 - piperazinone is made by methylating 2-piperazinone with formic acid and formaldehyde. 2-Chloro-10-[g  - (41 - tetrahydropyranyloxyethyl - 31 - ketopiperazinyl) - propyl] - phenthiazine is made by the action of 2-(b -bromoethoxy) tetrahydropyran on 2-chloro-10-[g -(1-ketopiperazinyl) propyl] phenthiazine (sodium compound). Cleavage of the pyranyl ether by distillation in vacuum gives the corresponding 41-hydroxyethyl compound.
Patent GB-1198569-A (GB)
Title: Semiconductor Junction Device.
IPC: C23C8/00
Filed: 1968-06-17
Abstract: 1,198,569. Semi-conductor devices. R.C.A. CORPORATION. 17 June, 1968 [3 July, 1967], No. 28737/68. Heading H1K. A transistor is made by forming a diffused base region in a monocrystalline wafer, by remasking the wafer and exposing the desired emitter area, and then by forming a layer of doped polycrystalline semi-conductor and heating to diffuse impurities into the wafer to form the emitter region. An annular portion of the base region is exposed and metal contacts are applied to the exposed base and to the polycrystalline island over the emitter region. The transistor shown is a variant in which two (in practical cases up to 100) emitter regions 66 are resistively connected together. Again, the base region 63 is formed in the monocrystalline wafer 60; emitter regions 66 are formed by diffusion of impurities from the deposited polycrystalline semiconductor 65; resistive material 68 (for example, intrinsic polycrystalline semi-conductor) is provided on each of the polycrystalline emitter islands; a layer 69 of highly conductive polycrystalline semi-conductor is formed over the entire surface (process masking 62 is still present); the base contact area is exposed; and a metal base contact 71 and single metal emitter contact 72 are applied. The semiconductor wafer may be of silicon, germanium, gallium arsenide, or germanium-silicon alloys. In an all-silicon device, process masking may be of silicon oxide, silicon nitride or silicon oxynitride.
Patent GB-1212186-A (GB)
Title: Improvements in or relating to plastics compositions
Inventor: WELLS HENRY
IPC: C08K9/02
Filed: 1966-11-18
Abstract: 1,212,186. Laminates. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 Nov., 1967 [18 Nov., 1966; 21 June, 1967], Nos. 51656/66 and 28747/67. Heading B5N. [Also in Divisions B2, C3 and H5] A plastics composition comprises a plastics material throughout which is distributed a filler comprising glass spheres having a continuous electrically conducting metal layer extending over the entire surface of the spheres. The plastics may be an epoxide or polyester resin, nylon or polyvinyl chloride; the beads may be of 10 micron diameter; and the metal may be silver nickel or copper of thickness providing 5 wt. per cent of the filler. Uncoated glass spheres or fibres may also be included. In Examples (1) a mix of equal weights of epoxy resin plus curing agent and silver coated spheres is spread on each of 7 sheets of strand glass mat which are then laminated under heat and pressure with copper conductor strips inserted adjacent the middle, slightly shorter layer to form a heater panel.
Patent GB-1530410-A (GB)
Title: Light-sensitive planographic printing plate materials
IPC: G03F7/34
Filed: 1976-07-09
Abstract: 1530410 Stripping developable materials for lithographic plates FUJI PHOTO FILM CO Ltd 9 July 1976 [11 July 1975] 28755/76 Heading G2C A light-sensitive planographic material which is developed by peeling comprises, in order, (a) a support having a surface of anodically oxidized aluminium or aluminium alloy (b) a hydrophilic polymer layer (c) a light-sensitive layer and (d) a transparent cover film. On imagewise exposure the adhesion of the exposed and unexposed areas of the light-sensitive layer (c) to the cover film (d) and polymer layer (b) differs, thus the cover film is removed taking with it either the exposed or unexposed areas leaving an image for printing on the support. The support comprises (i) an Al or Al alloy plate (ii) a bi-metal or tri-metal plate including Cu, Zn or Fe with the surface being Al or Al alloy or (iii) Al or Al alloy laminated to a polymeric support. The hydrophilic polymers are cellulose derivatives, polyvinyl alcohol or pyrrolidone, polyacrylamide, partial esters, partial ethers and partial acetals of polyvinyl alcohol; polyvinyl methyl ether, vinyl methyl ether-maleic anhydride copolymer, styrene-maleic anhydride copolymer, hydrolyzed polyvinyl acetate, polysodium acrylate, polyethylene glycol, starch, carboxymethyl and dialdehyde starch, sodium alginate, agar, tragacanth gum, gelatine and modified gelatine, gum arabic and mixtures thereof. The light-sensitive composition contains an ethylenically unsaturated monomer, a binder e.g. chlorinated polyolefins and polyvinyl butyral, and a photopolymerization initiator and may be coloured. The cover film is polyethylene terephthalate.
Patent GB-1138107-A (GB)
Title: Coil tightening apparatus and method
IPC: B21C47/06
Filed: 1967-06-22
Abstract: 1,138,107. Coiling strip. STANLEY WORKS. 22 June, 1967 [13 July, 1966], No. 28894/67. Heading B8C. [Also in Division B3] Coil tightening apparatus having coil support means for supporting a coil of sheet material in a generally upright position with its axis substantially vertical, pressure applying means for applying radially inward pressure on the outer surface of a coil of sheet material during relative rotation of the coil and the pressure applying means and drive means for effecting such relative rotation. The apparatus comprises a frame of four upright posts straddling a conveyer, Fig. 1 (not shown), on which the coil (12) rests and by which it is brought to a position under a platform from which is suspended a vertically movable strapping unit (22), which is fully described in U.S.A. Specification 3,216,346. The coil-tightening unit 40 comprises a base ring 42, connected by four posts 44 to the frame 32 of the strapping unit. The outer race ring 46 of a ball bearing unit is attached to the underside of the base ring and supports an inner ring 52 which is of L-shaped cross-section and has inwardly pointing teeth 60 which mesh with a drive gear 62. A motor 64 drives the gear 62 through a speed reducer 66 and a clutch and brake mechanism 70. Pivoted to the ring 52 is an arm 72 which carries a roller 78 at its free end and which is rotated about its pivot 74 by a double-acting fluid cylinder 80, fed from an hydraulic accumulator 94. The ring rotates at about 14 r.p.m. and the roller exerts a radial pressure of 1200-1500 p.s.i. on the coil. One revolution of the ring is found to tighten one loose turn of the coil, so that the ring must rotate as many times as there are loose turns on the coil. Limit switches stop the ring in a predetermined position so that a fluid source can recharge the accumulator through a quickly releasable valve 92.
Patent GB-977836-A (GB)
Title: Stable long-acting adrenocorticotropic hormone preparations and process for the manufacture thereof
IPC: A61K38/35
Filed: 1962-07-27
Abstract: Stable, long-acting A.C.T.H. preparations comprise a complex of adrenocerticotropic hormone with zinc hydroxide suspended in an aqueous, injectable medium to which has been added an oxyacid of phosphorus or an ester or a therapeutically-suitable salt thereof in a quantity equivalent to 0.016 to 0.22 mg. of phosphorus per mg. of zinc present.  Specified phosphorus compounds are meta, ortho-, pyro-and tri-poly-phosphoric acids, their sodium, potassium and ammonium salts and esters thereof with nucleosides, carbohydrates, poly-alcohols and hydroxy amino acids e.g. glycero-phosphates, fructose-, ribose- and glucose-phosphates, adenosine mono-, di- and tri-phosphate, cytidine phosphates, creatine phosphates and phosphoserine.  Specifications 757,934 and 839,300 are referred to.
Patent GB-1016663-A (GB)
Title: Process for the production of polyurethane foam materials
IPC: C08J9/00
Filed: 1964-07-14
Abstract: A process for producing polyurethane foam materials comprises reacting a polyether or polyester, polyisocyanates and water and/or other blowing agents in the presence of stabilizers which are reaction products of polyalkylene glycol ethers, polyisocyanates and polysiloxanes containing -OH or -SH groups linked by way or organic radicals to a silicon atom.  Twenty-three different stabilizers are listed and examples are given of their use in a reaction mixture of a branched polypropylene glycol and an 80 : 20 mixture of toluene 2,4-and 2,6-diisocyanates, in a reaction mixture of a polyester derived from adipic acid, diethylene glycol and trimethylolpropene and a 65 : 35 mixture of toluene 2,4- and 2,6-diisocyanates and in a reaction mixture of a polyester derived from adipic acid, dipropylene glycol and trimethylolpropane and 65 : 35 mixture of toluene 2,4- and 2,6-diisocyanates.  Water is used as the blowing agent and endoethylene piperazine or N-methyl-N1-dimethylaminoethylpiperazine in admixture with stannous octoate as accelerators. Specifications 769,681, 769,682, 827,473, 843,841, 867,156 and 876,434 are referred to.
Patent GB-298539-A (GB)
Title: Improvements relating to shift mechanism for typewriting machines
IPC: B41J25/24
Filed: 1928-10-09
Abstract: 298,539. Royal Typewriter Co., Inc., (Assignees of Handley, G. F.). Oct. 10, 1927, [Convention date]. Type-lever machines; case-shift mechanism. - A ball - bearing mounting for a vertically shiftable segment is constructed and arranged in the following manner :-The segment B, Fig. 1, is provided with upper races 1 and lower races 3, 5, and the framework E is provided at one side with upper and lower races 9, and at the other side with a single race 12. The races 1, 9 are secured by screws 2, 4. The race 5 is provided with a rib 6 fitting a groove and is secured in adjusted position by a screw 7 passing through a slot. The races 1, 3, 5, 9, being short, can be renewed cheaply. The race 12 is mounted in a groove in the framework and is clamped by one or more screws 18, the race being adjusted towards or from the segment by means of a pair of screws 14 in which are mounted screws 15 threaded into the race. Balls 20 running in the races are mounted in annular pinions which engage teeth on the front and rear edges of the races. According to the Specification as open to inspection under Sect. 91 (3) (a) the race 12 may consist of two separate members. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1274959-A (GB)
Title: Improved vehicle transmission
Inventor: CROOKS JAMES W
IPC: F16H3/54
Filed: 1970-06-16
Abstract: 1,274,959. Variable speed gearing. ALLIS CHALMERS MFG CO. 16 June, 1970 [23 June, 1969], No. 29040/70. Heading F2D. A simplified form of the transmission of Specification 1,274,597 having only one planetary train 3 and four clutches 10, 30, 40, 50 and having no p.t.o. or brake. A further clutch, Fig. 5 (not shown), may be inserted to connect the housing 22 and the planet carrier 7.